DOI: 10.1016/j.foreco.2016.12.027
Scopus记录号: 2-s2.0-85008323119
论文题名: Monochamus galloprovincialis and Bursaphelenchus xylophilus life history in an area severely affected by pine wilt disease: Implications for forest management
作者: Firmino P.N. ; Calvão T. ; Ayres M.P. ; Pimentel C.S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 389 起始页码: 105
结束页码: 115
语种: 英语
英文关键词: Flight phenology
; Host selection
; Phoresy
; Pine sawyer beetle
; Pinewood nematode
; Spatial partitioning
Scopus关键词: Biology
; Plants (botany)
; Flight phenology
; Host selection
; Phoresy
; Pine sawyer beetle
; Pinewood nematode
; Spatial partitioning
; Forestry
; Bursaphelenchus xylophilus
; Coleoptera
; Hexapoda
; Monochamus galloprovincialis
; Nematoda
英文摘要: Bursaphelenchus xylophilus is an insect-vectored pathogen and the causal agent of the pine wilt disease (PWD). In Portugal, where B. xylophilus is a recent invasive pest, the native pine sawyer beetle, Monochamus galloprovincialis, is its only vector. Epidemics of PWD emerge from three-way interactions among B. xylophilus, M. galloprovincialis, and host pine trees. However, the basic ecology of these interactions is poorly known. We studied M. galloprovincialis with respect to its life history, host selection, and phoresy by B. xylophilus in an area severely affected by PWD in Portugal. We assessed: (1) seasonal patterns of phoresy related to the flight phenology of the vector; and (2) distribution of M. galloprovincialis within and among host pine trees. Monochamus galloprovincialis in Portugal flies from May through October, and is probably bivoltine, but phoresy by B. xylophilus only occurs within a short period in early summer, when infection of new pine hosts most likely occurs. Peaks of M. galloprovincialis emergence and B. xylophilus phoresy immediately precede onset of the Mediterranean dry season, favoring PWD because B. xylophilus succeeds best on trees suffering from severe water deficits. The abundance of phoretic nematodes was more evident when their vectors were trapped as free flying adults rather than emerging from dying trees. Bursaphelenchus xylophilus were highly aggregated on a subset of M. galloprovincialis, which were aggregated in a subset of dying trees. However none of the host parameters related to size and bark thickness, could explain host selection. Despite its importance for PWD, M. galloprovincialis is a minor component of the bark and wood-boring insects of pine trees in Portugal. Interactions within this community are likely important to the epidemiology of PWD. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64487
Appears in Collections: 影响、适应和脆弱性
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作者单位: Centro de Estudos Florestais, Instituto Superior de Agronomia, University of Lisbon, Lisbon, Portugal; Departmento de Ciências e Engenharia do Ambiente, Faculdade de Ciências e Tecnologias, New University of Lisbon, Caparica, Portugal; Department of Biological Sciences, Dartmouth College, Hanover, NH, United States
Recommended Citation:
Firmino P.N.,Calvão T.,Ayres M.P.,et al. Monochamus galloprovincialis and Bursaphelenchus xylophilus life history in an area severely affected by pine wilt disease: Implications for forest management[J]. Forest Ecology and Management,2017-01-01,389